256162434963960 has 256 divisors, whose sum is σ = 905879570918400. Its totient is φ = 56724439560192.

The previous prime is 256162434963949. The next prime is 256162434963961. The reversal of 256162434963960 is 69369434261652.

It is a junction number, because it is equal to n+sod(n) for n = 256162434963891 and 256162434963900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256162434963961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10445130 + ... + 24928409.

It is an arithmetic number, because the mean of its divisors is an integer number (3538592073900).

Almost surely, 2^{256162434963960} is an apocalyptic number.

256162434963960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256162434963960 is an abundant number, since it is smaller than the sum of its proper divisors (649717135954440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256162434963960 is a wasteful number, since it uses less digits than its factorization.

256162434963960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35373830 (or 35373826 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 66.

The spelling of 256162434963960 in words is "two hundred fifty-six trillion, one hundred sixty-two billion, four hundred thirty-four million, nine hundred sixty-three thousand, nine hundred sixty".